RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR announced  
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All Forums >> Radios, Batteries, Clubhouse and more >> RC Radios, Transmitters, Receivers, Servos, gyros >> RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR announced
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RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR ann... - 2/22/2007 5:47:55 PM   
outssider


 

Posts: 1107
Joined: 1/18/2002
Status: offline 		any plans for modules for other radios ??

multiplex ??

(in reply to Robbidos)
       Post #: 26

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR ann... - 2/22/2007 6:02:12 PM   
bobzilla



Posts: 864
Joined: 8/4/2004
From: Henderson, NV, USA
Status: offline 		haha..that's like makin cup holders for Duesenbergs...how many do you think they would sell?

(in reply to outssider)
       Post #: 27

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR ann... - 2/22/2007 6:05:06 PM   
BobH


 

Posts: 4376
Joined: 4/1/2003
From: Springfield, VA,
Status: offline 		I'm thinking that if you buy the Futaba module you will have your professional 9z radio that is operating on 2.4 ghz. I have a 9 zwcii and I don't think you give up anything save 1 channel (for the moment).

For me its not a matter of open channels its a matter of another layer of glitch/shootdown protection. No doubt 2.4ghz systems are not with out its their own flaws but they seem to be less disasterous.

No doubt Futaba (and JR too) will jump into the frey (Futabe already has) to redeem their market share soon enough. Just MHO.

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(in reply to Robbidos)
       Post #: 28

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR ann... - 2/22/2007 6:13:36 PM   
jzinckgra



Posts: 717
Joined: 8/18/2003
From: Sturbridge, MA, USA
Status: offline 		can someone clear up something here? what is the big deal with the spektrum radio gear? i don't get it. for starters, you have two sets of antenna's in the fuse, which means you need more room to begin with. I can understand if people originally bought a spektrum radio/Rx/servos, but to go from futaba or JR and get these module/Rx's doesn't make sense to me. what am I missing? why all of the sudden interest in wanting 2.4 gHz radios is beyond me. I'll never use that freq. unless I have to. When did PCM become obsolete?

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(in reply to BobH)
       Post #: 29

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR ann... - 2/22/2007 6:18:55 PM   
BobH


 

Posts: 4376
Joined: 4/1/2003
From: Springfield, VA,
Status: offline 		I think you are missing a lot. The 2.4 Ghz radio is nearly immune from interference that we normally can and do experience. PCM has its benefits but you can still get glitches, crashes due to interference etc.

The next benefit is NO MORE SHOOT DOWNS. After spending 3 years building a Scale plane I enjoy the priviledge of crashing it myself... rather than having someone else do it via their radio.

So.. those two issues alone are worth the price of admission for many.

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(in reply to jzinckgra)
       Post #: 30

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR ann... - 2/22/2007 6:23:29 PM   
pettit



Posts: 2136
Joined: 12/19/2001
From: Durham, NC, USA
Status: offline 		About the antennas:

Sure there are 2 of them, but each is about 2" long.

They don't take up all that much room and they can be kept inside the fuselage.

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(in reply to BobH)
       Post #: 31

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR ann... - 2/22/2007 6:25:05 PM   
bobzilla



Posts: 864
Joined: 8/4/2004
From: Henderson, NV, USA
Status: offline 		pcm became obsolete the day the very first pilot got turned on by another radio on his frequency and his plane got shot down by someone else.
that was a very very very long time ago..and thousands and thousands of dollars later. Only one who profited is the hobby stores selling more planes.
The 2.4ghz radio systems is the greatest thing that has come to this hobby in terms of $$'s to be saved, additional sales for hobby stores and surely
greater safety on the flying field with no more out of control, comin' straight at ya..lawn darts!

jump aboard!

bobz

(in reply to jzinckgra)
       Post #: 32

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR ann... - 2/22/2007 6:29:14 PM   
pappy35


 

Posts: 360
Joined: 10/30/2006
From: Liberty Township, OH, USA
Status: offline 		I can live with hold (the default FS I bet) but what else do you loose when using PPM?


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Al

(in reply to Robbidos)
       Post #: 33

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR ann... - 2/22/2007 6:38:32 PM   
tranker


 

Posts: 50
Joined: 7/10/2005
From: McHenry, IL, USA
Status: offline 		It would be helpful to see a matrix of features lost or gained between traditional PPM, Hybrid (PPM/PCM radio with Spektrum Module), and a Spektrum Radio (DX<channel number here>

(in reply to pappy35)
       Post #: 34

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR ann... - 2/22/2007 6:43:08 PM   
BobH


 

Posts: 4376
Joined: 4/1/2003
From: Springfield, VA,
Status: offline 		Features should be contained within the operating system of the Radio and not within the RF Module as I understand things. I'm not a radio guru but as I understand things the transmission frequency and what is being transmitted are two separate things. Maybe if you have a 12 or 14 mz Tx and only have a 8 or 9 channel RX then you will lose some channels.
Of cours I could be wrong.. I almost once was.

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BobH.

(in reply to tranker)
       Post #: 35

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR ann... - 2/22/2007 6:52:04 PM   
tranker


 

Posts: 50
Joined: 7/10/2005
From: McHenry, IL, USA
Status: offline
quote:

ORIGINAL: BobH

Features should be contained within the operating system of the Radio and not within the RF Module as I understand things. I'm not a radio guru but as I understand things the transmission frequency and what is being transmitted are two separate things. Maybe if you have a 12 or 14 mz Tx and only have a 8 or 9 channel RX then you will lose some channels.
Of cours I could be wrong.. I almost once was.

Exactly! So features such as linking the receivers to the model program, which the DX7 has, is probably missing in these "hybrid" solutions. I have a 9303, but a DX9 or higher sure would be nice.

(in reply to BobH)
       Post #: 36

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR an... - 2/22/2007 6:59:08 PM   
MMallory


 

Posts: 1112
Joined: 12/11/2001
From: South Plainfield, NJ, USA
Status: offline 		From http://www.spektrumrc.com/DSM/FAQ.aspx

Will Model Match work with the Module System?
No. Model Match is a patented feature that prevents a model from being operated using the wrong model memory. Model Match can only be integrated into a dedicated Spektrum transmitter such as the Spektrum DX7. The programming necessary to make Model Match functional must be embedded into the transmitter´s programming.

I understand the AR9000 has two types of fail-safe?
The AR9000 features both Smart Safe and a conventional fail-safe. With Smart Safe, if there is a loss of signal the throttle servo will move to a preset position (idle) while holding the last position command of the other servos. The AR9000 also has conventional programmable fail-safe that drives all servos to their preset position if there is a signal loss. When the signal is regained, complete control is resumed within 4ms.

(in reply to tranker)
       Post #: 37

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR an... - 2/22/2007 7:05:24 PM   
Robbidos



Posts: 242
Joined: 1/1/2003
From: GLENDALE, AZ, USA
Status: offline 		Yes, but can those fail-safe features be activated by the modules, or will those features only work with a spektrum TX? Inquiring minds want to know.


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(in reply to MMallory)
       Post #: 38

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR an... - 2/22/2007 7:43:46 PM   
pappy35


 

Posts: 360
Joined: 10/30/2006
From: Liberty Township, OH, USA
Status: offline 		Lots of conflicting info abounds...Horizon just told me the only thing lost is TX software-based fail-safe but the Rx F/S (throt. to idle) is still there. He said nothing else is lost. I thought I read in the release info that model-match is still there.


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Al

(in reply to Robbidos)
       Post #: 39

RE: Spektrum DSM2 2.4Ghz modules for Futaba and JR an... - 2/22/2007 7:48:51 PM   
visioneer_one



Posts: 2414
Joined: 12/12/2001
From: St. Thomas, VIRGIN ISLANDS (USA)
Status: offline
quote:

ORIGINAL: Robbidos

Yes, but can those fail-safe features be activated by the modules, or will those features only work with a spektrum TX? Inquiring minds want to know.


Both of the failsafes are set up during binding and are maintained by the receiver. They'll work in the same way with either the modules or dedicated Spektrum transmitters.


< Message edited by visioneer_one -- 2/22/2007 7:52:42 PM >

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(in reply to Robbidos)